Wigwam F4707-052-OS Classic Ribbed Worsted Wool Watch Cap, Black, One Size SummerEndSale Used for exhaust attic ventilation

Used for exhaust attic ventilation

These covered openings allow air to escape the attic

Used to reduce flue pipe size

The 23" base stand is for use for trees up to 7' tall with a 4

Wigwam F4707-052-OS Classic Ribbed Worsted Wool Watch Cap, Black, One Size SummerEndSale Used for exhaust attic ventilationThe F4707 classic ribbed watch cap is a great combination of warmth and simplicity, and has been a favorite of Merchant Marines for several years. Made of 100% Worsted Wool, the cap provides ultimate comfort and warmth. Color: Black Classic ribbed watch cap 100% Worsted Wool Great combination of warmth and simplicity One size fits all. Contents: 100% Worsted Wool.